Red pulsating, round, small, silent UFO observed twice above very tall tree.About 10–20 feet above very tall tree (approximately 80 – 100 feet tall), saw bright red, round, light. Appeared as though it may be pulsating. It wasn't very large. I don't know exact size. I sort of felt in shock, couldn't wrap my head around what I was seeing. My husband had just gone inside to take shower. I ran in the house, hollering it's a UFO, come see! I briefly thought about grabbing my phone to take picture. But, I didn't want to take my eyes off the object. And I wasn't sure if you could tell much about the object anyway.Absolutely no sound. Hovered above tree for approximately 2–3 minutes, then began to travel straight up. Then it completely disappeared. I did not see it travel up, down, right or left. Just disappeared. Then approximately 2–3 minutes later, it returned. It hovered above same tree for 20 – 30 seconds & then disappeared. My husband did not hear me & by the time he finished shower & came outside it was already gone.I felt like I was being observed.Probably not connected, but about 30 minutes later, my husband and I heard strange sounds coming from same general location (on the ground of course). We have a wooded area right next to us & it sort of sounded like an animal walking in the woods. But, we sit out on our patio all the time & have heard just about every sound & can identify typical sounds. This sounded weird/different. Because when it’s a deer, or other animal, you can hear it moving & sound moves/travels with the animal. This sound seemed to stay in one location. I don’t really know how to describe the sound, but it kind of sounded like someone/something going around in a circle in one area.We have neighbors behind us, but no lights were on, no flashlight appeared. We tried to rule out every possibility.